Electric lamp.



0. H00. ELECTRIC LAMP.

APPLICATION FILED FEB. I4, I914.

Patented Aug. 3, 1915.

CONSTANT FICQ, OF VICTORIA, BRITISH COLUMBIA, CANADA.,

ELECTRIC LAMP.

Specification of Letters Patent.

Patented Aug. 3, 1915.

Application filed February 14, 1914. Serial No. 818,739.

' which the following is a specification.

The invention relates to electric lamps of the incandescent type, thepurpose being to prevent the loss of luminous rays'and to direct thesame in a manner to obtain greater efliciency from a given amount ofcurrent.

In accordance with this invention the lamp comprises a base whichpresents an extended reflecting surface, such base receiving a globe andhaving the filament attached thereto andvextended' so as to present amaximum amount of light giving surface. The" invention consists of thenovel features, details of construction and combination of parts, whichhereinafter will be more particularly set forth, illustrated andclaimed.

In the drawings'hereto attached:-F1gure 1 is a view in elevation of anincandescent lamp embodying the invention. Fig. 2 is a I verticalcentral section. Fig. 3 is a view of the lamp inverted. i

Corresponding and like parts are referred to in the followingdescription, and indicated in all the views of the drawing, by thesamereference characters.

The lamp comprises a base and a globe,

the latter: being transparent and the base being constructed ofporcelain or other vitreous material of a nature so as not to transmitrays of light. The base comprises a stem 1 and a body 2, the latterbelng eX-' tended and preferably of circular form. A groove 3 is formedin the outer portion of the body 2 near its edge and is intended toreceive the edge of the globe 4 which is secured to such groove by meansof cement. The side of thebody 2 facing the globe 4 constitutes areflecting surface and serves to throw the rays of light in onedirection,

thereby concentrating the luminous rays and preventing their waste in adirection opposite that required for use. The conductors 5 arepreferably molded within the base and are connected respectively to thesleeve and button so as to make electric connection with thecorrespondin parts of the socket when the lamp is fitte to such socketin the manner well understood. The filament 6 is connected at itsextremities to the conducthe lamp is adapted to withstand a shockwithout causing fracture of the filament. The reflectingsurfac'e of thebase may be finlshed in anymanner. so'as to direct the rays of light tothe besthdvantage for use.

From the foregoing description, taken in connection with theaccompanying drawing, the advantages of the construction and of themethod of operation will be readily-ap- 'parent to those skilled in theart to which the invention appertains, and while I have described theprinciple of operation of the invention, together with the device whichI now consider to be the best embodiment thereof, I desire to haveit'under'stood that the device shown is merely illustrative, and thatsuchchanges may be made when desired as are within the scope of theinvention as claimed.

Having thus described the invention, what is claimed as new is Anincandescent electric lamp'comprising a base of vitreous materialcomprising a stem having formed integral at. one end thereof arelatively thin laterally extending annular flange having an annulargroove near its periphery, the under surface of said flange constitutinga reflector, a filament comprising a plurality of folds or loopsarranged within the reflecting surface of the base, supports for theloops or folds of the an adhesive material interposed between the wallof said groove and the outer surface of the edge portion of said globe.

In testimony whereof I aflix my signature in presence of two witnesses.

CONSTANT FICQ.

-Witnesses:

ALFRED B. HANLUY, AUoUs'rUs SCHUBERT.

